Notice that we’re able to take each expression and put it on the right side of the equals sign. If the parameter is
undefined
then the expression on the right side will be evaluated. This allows us to only call the
requiredParam
function if
kind
or
size
is
undefined
. It also is possible to use the value of other parameters in our expression like we do in the default param for
upperKind
which I find to be a ridiculously cool feature and I use this all the time in options configuration for some of my tools (
for example
).

I’ll add that the same kinds of semantics would apply for object destructuring (whether as a parameter or not) as well. For example, if we change the arguments to be an options object:

Or, if we want to destructure the options object directly in the parameter list:

Attendees spoke out against the recently rescinded policy of separating migrant family members at the U.S. border with Mexico, and others went a step further and called for the abolition of U.S. Immigration and Customs Enforcement, or ICE.

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Sen. Dick Durbin called the rally “a place I had to be.” He also called for “lopping off heads” at ICE and said November will give Democrats and others urging for policy changes a microphone to do so.

By Glamour
— We asked a producer in NYC with a $95,000 salary to break down everything she spends money on in a month.

The Families Belong Together march makes its way south on Clark St. | James Foster/For the Sun-Times

The Families Belong Together march makes its way south on Clark St. | James Foster/For the Sun-Times

The Families Belong Together march makes its way south on Clark St. | James Foster/For the Sun-Times

The Families Belong Together march started in Daley Plaza. | James Foster/For the Sun-Times

The Families Belong Together march started in Daley Plaza. | James Foster/For the Sun-Times

The Families Belong Together march makes its way south on Clark St. | James Foster/For the Sun-Times

Pat Deep at the Families Belong Together march. | James Foster/For the Sun-Times

The Families Belong Together march started in Daley Plaza. | James Foster/For the Sun-Times

The Families Belong Together march started in Daley Plaza. | James Foster/For the Sun-Times

The Families Belong Together march started in Daley Plaza. | James Foster/For the Sun-Times

The Families Belong Together march started in Daley Plaza. | James Foster/For the Sun-Times

The Families Belong Together march starting in Daley Plaza, Saturday, June 30th, 2018. | James Foster/For the Sun-Times

The Families Belong Together march starting in Daley Plaza, Saturday, June 30th, 2018. | James Foster/For the Sun-Times

The Families Belong Together march started in Daley Plaza. | James Foster/For the Sun-Times

The Families Belong Together march started in Daley Plaza. | James Foster/For the Sun-Times

The Families Belong Together march started in Daley Plaza. | James Foster/For the Sun-Times

The Families Belong Together march started in Daley Plaza. | James Foster/For the Sun-Times

Ivette Sancen at the Families Belong Together march. | James Foster/For the Sun-Times

The Families Belong Together march started in Daley Plaza. | James Foster/For the Sun-Times

Melody Angel speaks at the Families Belong Together march. | James Foster/For the Sun-Times

The Families Belong Together march starting in Daley Plaza. | James Foster/For the Sun-Times

Victor Tapia, age 7, at the Families Belong Together march. | James Foster/For the Sun-Times

Victor Tapia, age 7, at the Families Belong Together march. | James Foster/For the Sun-Times

The Families Belong Together march makes its way south on Clark St. | James Foster/For the Sun-Times

Though the policy was walked back, many at the Saturday march said the policy should never be repeated. Around noon, protesters, toting signs that said “Fire ICE” and “#EndFamilyDetention” among other slogans, took their message to ICE’s regional field office, making their way South on Clark Street to the intersection of Clark and West Congress Parkway.

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